Treating fibrous materials



v Patented 9,1940

UNITED STATES PATENT- OFFICE macs mums rmaous m'mmts Karl Brodenen and Matthias Quaedvlieg, Dessan in Allin",

,assignoratoGeneralAn- Germany iline -Worka, Inc., New York, N. Y., a corporation oi Delaware No Drawing. Application January 8,1988, Serial No. 184,036.. In Germany January 14 193'! Giaiml.

Our present invention relates to a new process ior treating fibrous materials.

In'general, the known preparations, which are of widely different kinds, ior treating fibrous 5 materials must, in order to produce any considerable eiiect, be used in relatively large quantity, at best amounting to more than 2 grams per liter oi the treating bath. 7 This invention is based on the observation that the products of reaction of the aliphatic amines oi high molecular'weight with compounds derived irom cyanamide or a salt thereoi and an alkylene oxide are highly eiiective as textile treating agents, even in extraordinarily low con- 1 centration. Instead oi using an alkylene oxide,

R means hydrogen, alkyl, or chloroalkyl.

These aminooxazolines readily add a molecule of, for example, stearylamine hydrochloride,- probably according to the equation a v a (L2 3 a in. 1 4 \g \i R meaning an alkyl radicle with at least 8 carbon atoms. i

A still more eiiective agent is obtained ii these compounds or especially those derived irom a dichlorhydrin and sodium cyanamide, probably an aminochlormethyloxazoline, are caused to. react with 2 or 3 molecules oi, for instance. stearylamine hydrochloride, this reaction being periormed by slightly heating a mixture oi th said starting materials. 7

The new compounds are especially useful as soitening agents ior artificial'silk. Instead oi ethylene oxide or epichlorhydrin, the oxide oi propylene, butylene or another alkyiene having a straight: or branched chain can lllbeused. Primaryamines canbeusedinthe tion a free amino group and a second amino group substituted by an alkyl radical with at least 8 same way as secondary, and instead oi fatty amines those derived from resin acids and naphthenic acids may be used with equal effect.

It must be stipulated that the reaction product contain per molecule at least one aliphatic or g alicyclic residue having more than 8 carbon atoms.

The new preparations can be used for the most .widely diflerentkinds oi treatment oi fibrous bodies, of all kinds. They are characterized by 10 their high quantitative efliciency as shown by the following examples, which illustrate the invention:

Example 1.Unwashed viscose silk is treated with 0.05 gram per liter of the amidazoline dell rivative from 2 molecules oi stearylamine hydrochloride and ammochloromethyloxazoline hydrochloride ior about hour at 0.; washed and dried. The silk has a pleasant, iull and soft Example 2.Ii a viscose material dyed with .0 Direct Deep Black EW extra (Schultz, Farbstofltabellen No. 671) is treated with a solution of 0.05 per cent strength oi stearylamino-aminooxazolidine hydrochloride, the dyeing is rendered fast to water. v

It is obvious that our invention is not limited v to the foregoing examples or to the specific details given therein. Thus, for instance, any other aliphatic amine with at least 8 carbon atoms may as be used ior producing the condensation product with the aminooxazolines in question. Instead oi primary amines secondary amines maybe condensed with the aminooxazoline. Instead oi artificial silk fabrics of natural fibers such as cotton or wool may be subjected to the treatment with the said products.

What I claim is: s

l. The process which comprises treating fibrous materials with a diluted aqueous solution oi a condensation product of an aminooxyazoline with an aliphatic amine containing more than 8 carbon atoms, said condensation product containing bound to the carbon atom in the 2-posicarbon atoms.

2. The process which comprises treating fibrous materials with a diluted aqueous solution of a condensation product oi one molecular proportion of an aminooxazoline with one molecular proportion oiv an aliphatic amine containing more than 8 carbon atoms, said condensation product containing bound to the carbon atom in the 2-position a tree amino gpoup and a sec- I 0nd amino gr up-su t d y an ll!!! radical co'se silk in an aqueous bath containing per liter with at least 8 carbon atoms. 054mm of 2-steary1amino-2-aminooxyazolidine.

3. The process which mprises treatinl' 1 5. The process which comprises treating visbrous materials with a diluted aqueous solution cose silk in an aqueous bath containing per liter of a condensation'product of one molecular pro- P 0! the condensation Product of two 8 5 portion ofa'n aminooxazoline with two molecular molecular Proportions f.$teary19-mme hydm' proportions of an aliphatic amine containing chloride with one molecular proportion of aminochloromethyloxazoline, said condensation prodmore than 8 .carbon atoms said condensation uct containing bound to the carbon atom in the product containing bound to the carbon atom in 2 pos1t10n a free amino group and a second 10 the 2-position a free amino group and a second mo group substituted by an alkyl radical with 10 amino group substituted by an alkyl radical with at least 8 carbon atoms.

at least 8 carbon atoms. KARL BRODERSEN.

4. The process whichcomprises treating vis- MATH-HAS QUAEDVLIEG. 

